bathe
| A．worth | B．healthy | C．though | D．strength |
Clean water and fresh air are essential for our daily life, _______ we can’t live.
| A．by which | B．without which |
| C．that | D．on which |
----Tom, you’ve got an A in the final English exam. Congratulations!
----Thanks. But I never thought the result came out so fast. The papers ______ when I left the teacher’s office just now.
| A．had been marked | B．were still being marked |
| C．are still marking | D．had been marking |
When the audience heard the alarm, they all hurried to they thought was an emergency exit door．
| A．what | B．which | C．where | D．Who |
--- We expected you yesterday．
--- I'm sorry, I you to say that I couldn't be here until today．
| A．must have called | B．would be calling |
| C．could have been calling | D．should have called |
He had a wonderful childhood, ________ with his mother to all corners of the world.
| A．travel | B．to travel |
| C．travelled | D．Travelling |